CN102322694A - Spherical cavity type solar heat absorber with inwardly concave glass cover - Google Patents
Spherical cavity type solar heat absorber with inwardly concave glass cover Download PDFInfo
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- CN102322694A CN102322694A CN201110255144A CN201110255144A CN102322694A CN 102322694 A CN102322694 A CN 102322694A CN 201110255144 A CN201110255144 A CN 201110255144A CN 201110255144 A CN201110255144 A CN 201110255144A CN 102322694 A CN102322694 A CN 102322694A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/44—Heat exchange systems
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Abstract
The invention discloses a spherical cavity type solar heat absorber with an inwardly concave glass cover. The heat absorber is mainly used for collecting sunlight and converting the sunlight into heat energy in a butterfly type solar high-temperature heat utilization system. The heat absorber mainly comprises a heat exchange coil pipe, the inwardly concave glass cover, an outer shell, an inner shell, a vacuum layer, a reflective wind shield and a heat conductive fluid. Different from the traditional opening type heat absorber and the cavity type heat absorber with the glass window at the cavity opening, the cavity type heat absorber disclosed by the invention is the opening type spherical heat absorber with the inwardly concave glass cover, therefore, the cavity type heat absorber not only has the light capturing capacity of the opening cavity type heat absorber but also has low heat loss of the cavity type heat absorber with the glass window at the cavity opening; meanwhile, the cavity type heat absorber is provided with the reflective wind shield, therefore, the capturing on deviated light can be strengthened, and the heat radiation on the inner wall and the convection heat transfer loss resulted from external natural wind can be reduced; and the cavity type heat absorber comprises the vacuum layer between the inner shell and the outer shell, therefore, the lost heat through the shells can be effectively reduced.
Description
Technical field
The present invention relates to a kind of cavity-type solar heat dump, particularly a kind of high-effective spherical cavity type heat absorber that contains the indent cloche that is applied in the butterfly solar energy high temperature heat utilization system.
Background technology
Along with the progress and development of social production, along with the raising of living standards of the people, energy demand also will increase substantially.The disposable Energy Mix in the current whole world mainly is to be main body with the fossil fuel; But fossil fuel is as the non-renewable energy resources of the earth; On the one hand in the near future can be exhausted; The use of a large amount of fossil fuels has caused environmental pollution and ecological disruption again on the other hand, is seriously threatening people's health.Therefore, the development and utilization new forms of energy meet the strategy of sustainable development.Solar energy is the energy of solar interior nuclear fusion process generation continuously, is most important basic power source in the various regenerative resources (comprising biomass energy, wind energy, ocean energy, water ability etc.).Solar energy does not produce the new forms of energy of pollution as a kind of to environment, and is inexhaustible.
The solar energy high temperature heat utilization is the big event during solar energy utilizes.In the solar energy thermal-power-generating field, the butterfly solar heat power generation system has become one of most important three kinds of solar energy thermal-power-generating modes.But and butterfly solar energy high temperature heat utilization system have simultaneously optically focused than height, modularization simple in structure, be specially adapted to advantages such as distributed energy, it utilizes occasion all to have wide practical use in other elevated temperature heat.
Cavity type heat absorber is the device that in the butterfly solar energy high temperature heat utilization system sunshine of assembling is changed into heat energy, and its light-thermal transition efficient has determined the efficiency of utilization of butterfly solar energy system.For the research of the performance and the characteristics of cavity type heat absorber, Chinese scholars was done a large amount of experimental studies and theory analysis, and research mainly concentrates on the thermal loss of analyzing cavity type heat absorber.The heat waste of cavity type heat absorber is made up of four parts: (1) sunshine is through the reflection loss of accent; (2) conductive heat loss through the heat dump wall; (3) air is through the convection losses of accent; (4) thermal radiation loss through accent.Research emphasis mainly concentrates on three aspects of profile, structure, heat-conducting medium of cavity type heat absorber, and the concrete present Research of these three aspects is:
1. the profile kind of cavity type heat absorber mainly comprises cylindrical, truncated cone-shaped, taper shape, square chamber shape, sphere and other improved shape in addition on this basis.The profile of cavity type heat absorber all exerts an influence to four part heat wastes, and present research mainly concentrates on the situation of change of qualitative analysis one to two kind of heat waste wherein with profile, and four kinds of heat wastes of cavity type heat absorber are lacked quantitative research and comparison.
2. classify from structure, cavity type heat absorber is divided into open type and two kinds of band windowpane formulas.The cavity type heat absorber of open type makes gathered light at off-energy hardly when the accent; But these characteristics of opening make that light, heat radiation ray more are prone to leave cavity through accent; And air is prone to get into cavity, through taking away heat with the heat convection of heat exchange coil tube wall.The cavity type heat absorber of band windowpane has then effectively weakened above-mentioned heat waste, but because windowpane is positioned at the accent place, so light has been produced certain reflection, the luminous energy of the cavity of entering will be less than the cavity type heat absorber of open type.
3. the cavity type heat absorber heat-conducting medium mainly contains air, fuse salt, conduction oil, phase-changing energy storage material, heat chemistry energy storage material etc., and the occasion that various media are suitable for is different.Fuse salt and air are applicable to that all elevated temperature heat utilizes occasion, but respectively deficiency are arranged.Fuse salt freezes easily, so need to cooperate thawing apparatus, like heating wire, has increased energy consumption.Though the operating temperature of air can surpass 1000 ℃, air thermal capacity is little, and heat transfer property is poor, can not satisfy the heat absorption and the heat transfer requirement of high-power butterfly solar energy system.It is big that conduction oil has thermal capacity, and heat transfer property is good, and advantages such as long service life are used widely in the middle elevated temperature heat utilization below 500 ℃.The research of phase-changing energy storage material, heat chemistry energy storage material has obtained preferably progress in recent years, and phase-changing energy storage material, that the heat chemistry energy storage material has thermal capacity is big, and the characteristics that the coefficient of heat transfer is high have begun to be applied to solar energy high temperature heat utilization field.
In a word, existing cavity type heat absorber is of a great variety, but lacks the cavity type heat absorber that light-thermal transition efficient is high, simple in structure, applied widely, and butterfly solar energy high temperature heat utilization field presses for cavity type heat absorber efficiently.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, proposed to contain the spherical cavate solar heat absorber of indent cloche.This cavity type heat absorber can reduce thermal loss effectively, improves light-thermal transition efficient.
The spherical cavate solar heat absorber that contains the indent cloche; Comprise housing, concave cloche, reflecting type deep bead, heat exchange coil and optically focused dish; Described cavity type heat absorber overall structure is the spherical cavity of band opening; The structure of its middle shell is the spherical cavity of band opening, and the concave cloche is also for being with the spherical cavity of opening; The centre of sphere of cloche overlaps with the centre of sphere of housing, and the opening of cloche and housing is towards consistent, and opening surface is circle, and two circles equate with two conical drift angles that the centre of sphere forms, the opening subtended angle equal and opposite in direction of said drift angle size and optically focused dish; Opening surface is over against the optically focused dish; Heat exchange coil is pressed close to the shape arrangement in the shape of a spiral of inner walls face, and the opening of housing is positioned at the housing bottom, and the heat-conducting fluid outlet of heat exchange coil is positioned at the housing top end, and the heat-conducting fluid inlet of heat exchange coil is positioned at the housing bottom end position; The reflecting type deep bead is the truncated cone-shaped plate of upper and lower opening, its top and the cloche openings is seamless joins, and the side of reflecting type deep bead links to each other with shell nozzle is seamless, forms a sealing area that is made up of housing, cloche, deep bead.
In the above-mentioned spherical cavate solar heat absorber that contains the indent cloche, described housing is double-deck steel design, comprises inner casing, shell and by the vacuum layer that forms between the inside and outside shell; The opening position of housing vertically down, housing is divided into upper half shell and lower half shell two parts, the crossing face level of last lower half shell and the centre of sphere through housing, last lower half shell links to each other through four pairs of bolt and nuts, sealing rubber ring is used in the joint; There are some breeder tubes at the sealing ring middle part, and the vacuum layer of lower house is connected; The bottom of lower casing is provided with the pore that a confession heat exchange coil lower end heat-conducting fluid inlet passes, and the top of upper casing is provided with the pore that a confession heat exchange coil upper end heat-conducting fluid outlet is passed, sealing around the pore; The lower casing bottom is provided with and is used for the aspirating hole that the vacuum connection vacuumizes machine, and aspirating hole is furnished with the rubber stopper that is used to seal.
In the above-mentioned spherical cavate solar heat absorber that contains the indent cloche, heat exchange coil is pressed close to the shape arrangement in the shape of a spiral of housing inner casing wall.
In the above-mentioned spherical cavate solar heat absorber that contains the indent cloche, said cloche adopts the high temperature resistant quartz glass of high transmission rate, and light transmittance is greater than 0.95; Cloche smooth surface and thickness are 2mm-4mm.
In the above-mentioned spherical cavate solar heat absorber that contains the indent cloche; The surface of described optically focused dish is parabolic; The focus of optically focused dish is positioned at the central point of cloche opening surface; The line of optically focused dish outer rim and focus and the angle of vertical curve are the half angle of optically focused dish, and the scope of half angle is 30 °-45 °, and the twice of half angle is the subtended angle of optically focused dish.
In the above-mentioned spherical cavate solar heat absorber that contains the indent cloche, described heat exchange coil adopts double helix or many helical structures, and said double helix or many helical structures refer to two or the many structures that straight tube carries out spiralization by the pitch of setting side by side.
In the above-mentioned spherical cavate solar heat absorber that contains the indent cloche; Spacing 1mm-2mm between the adjacent coil pipe outer wall; Coil pipe is close to the housing inboard and is arranged, and the heat-conducting fluid that flows in the pipe adopts a kind of in resistant to elevated temperatures conduction oil, phase-changing energy storage material, the heat chemistry energy storage material.
In the above-mentioned spherical cavate solar heat absorber that contains the indent cloche, described heat exchange coil is processed by thermal conductivity high red copper or aluminum or aluminum alloy, and the outside wall surface of heat exchange coil is a rough surface.
In the above-mentioned spherical cavate solar heat absorber that contains the indent cloche, the truncated cone-shaped thin plate that said reflecting type deep bead is a upper and lower opening, its side all has reflection function, and the outside of reflecting type deep bead is a minute surface towards a side of optically focused dish promptly, the ability reflection ray; The inboard of reflecting type deep bead promptly dorsad a side of optically focused dish scribble infrared reflection coating, can reflective thermal radiation ray.
Heat exchange coil employing double helix according to the invention or many helical structures, promptly heat-conducting fluid is divided into two strands or the parallel heat exchange coil flow direction outlet in edge respectively of multiply tributary after inlet gets into.Double helix or the relative single coil configuration of many helical structures can reduce the pressure loss of fluid along tube side effectively, can increase fluid flow simultaneously, in time to take away heat in the chamber, improve heat exchange efficiency.
Compared with prior art, the present invention has the following advantages:
1. it is strong to catch the light ability, and the reverberation loss is few.This cavity type heat absorber adopts the structure that contains the concave cloche, at the accent place light is not produced reflex, and incident ray gets into and more is prone to behind the cavity absorbed or between the cloche inwall, multipath reflection takes place by wall simultaneously, is difficult for overflowing accent.The deep bead of reflecting type can get in the chamber through the incident light that reflex departs from part, has strengthened the light capturing ability.
2. the convection heat losses between air and the heat exchange coil is little.Because housing, cloche and deep bead have formed enclosed areas, make extraneous cold air can't be directly and high temperature heat exchange coil tube wall carry out heat convection, thereby reduced the convection heat losses in the chamber.Deep bead natural wind to external world has good blocking effect, can weaken the forced convertion that extraneous wind-force causes, has also reduced the convection current heat waste in the chamber.
3. thermal radiation loss is effectively controlled.Owing to there be stopping of cloche, multipath reflection takes place in the heat radiation ray of heat dump easily between cloche and tube wall, weakened the thermal exposure through accent.Because a side scribbles infrared reflection coating in the chamber of reflecting type deep bead, make its ability reflecting part heat radiation, reduce the temperature of deep bead and the thermal radiation loss of heat dump.
4. the conductive heat loss through housing reduces, and housing is easy to dismounting and assembling.To adopt fill insulant material to reach heat insulation effect different with traditional cavity type heat absorber, and this cavity type heat absorber adopts vacuum heat-preserving.The housing middle part is pumped down near vacuum, can effectively reduce the shell wall side thermal conductivity, reduces the conductive heat loss through shell wall side.Housing is made up of two parts up and down, and both closely link to each other with sealing ring through bolt, detachably also clear up in case of necessity or the replacing intraware.
Description of drawings
Fig. 1 is the axial section structural representation that originally contains the spherical cavate solar heat absorber of indent cloche.
Fig. 2 is the upward view that originally contains the spherical cavate solar heat absorber of indent cloche.
Fig. 3 is the local enlarged diagram in A district among Fig. 1.
In the accompanying drawing: the 1-shell; The 2-vacuum layer; The 3-inner casing; The 4-heat exchange coil; The 5-heat-conducting fluid; The 6-bolt; The 7-aspirating hole; 8-optically focused dish; The 9-fluid issuing; 10-spherical glass cover outer wall; 11-spherical glass cover inwall;
The 12-breeder tube; The 13-rubber seal; The 14-deep bead is inboard; The 15-fluid intake; The 16-deep bead outside; The 17-focus; The 18-accent; 19-22-heat radiation ray; The incident light that 23-departs from; The incident light that 24-is desirable.
The specific embodiment
Above content has been done clearly explanation to content of the present invention, below combines the accompanying drawing specific embodiments of the invention to further describe again, but enforcement of the present invention and protection domain are not limited thereto.
Fig. 1-Fig. 2 is a structural representation of the present invention.The spherical cavate solar heat absorber that contains the indent cloche comprises shell 1; Vacuum layer 2; Inner casing 3; Heat exchange coil 4; Heat-conducting fluid 5; Bolt 6; Aspirating hole 7; Optically focused dish 8; Fluid issuing 9; Spherical glass cover outer wall 10; Spherical glass cover inwall 11; Breeder tube 12; Rubber seal 13; Deep bead inboard 14; Fluid intake 15; The deep bead outside 16; Focus 17; Accent 18.Said cavity type heat absorber overall structure is the spherical cavity of band opening, and the structure of its middle shell is the spherical cavity of band opening, and the concave cloche also is the spherical cavity of band opening; The centre of sphere of cloche overlaps with the centre of sphere of housing, and the opening of cloche and housing is towards consistent, and opening surface is circle, and two circles equate with two conical drift angles that the centre of sphere forms, the opening subtended angle equal and opposite in direction of said drift angle size and optically focused dish; Opening surface is over against the optically focused dish; Heat exchange coil is pressed close to the shape arrangement in the shape of a spiral of inner walls face, and the opening of housing is positioned at the housing bottom, and the heat-conducting fluid outlet of heat exchange coil is positioned at the housing top end, and the heat-conducting fluid inlet of heat exchange coil is positioned at the housing bottom end position; The reflecting type deep bead is the truncated cone-shaped plate of upper and lower opening, its top and the cloche openings is seamless joins, and the side of reflecting type deep bead links to each other with shell nozzle is seamless, forms a sealing area that is made up of housing, cloche, deep bead.The assembling sequence of this cavity type heat absorber is for from inside to outside, from down to up.Fixed wind sheild on lower house at first, the fixing spherical glass cover 10 on the deep bead top, the screw type heat conduction coil pipe that will make completion then is fixed on the lower casing to be made, and at last upper casing is connected on the lower casing through bolt 6 and rubber seal 13.Be evacuated near vacuum in the middle of the housing through aspirating hole 7, to reach heat insulating effect.
Sunshine is assembled the back through the optically focused dish and is got into cavity, but because the surface and the imperfect parabola of actual optically focused dish, there is the gradient error in the surface of optically focused dish, so have three kinds through optically focused dish light reflected: 1. light gets into cavity through focus; 2. light is not through focus but through accent entering cavity, and 3. light is after the reflection of optically focused dish, because of the deviation angle that takes place can not pass through accent greatly.The 1st kind and the 2nd kind of light are called ideal light rays, can disposable incident ray through accent, the 3rd kind of light is called stray light, promptly can not disposable incident ray through accent.Obviously, the deviation angle of allowing the closer to the incident light of optically focused dish outer rim is more little, causes the quantity of stray light more.The reflecting type deep bead of this cavity type heat absorber can be reflected in the chamber through the stray light of minute surface reflex with optically focused dish outer rim.As shown in Figure 1, ideal light rays 24 is through getting into cavity behind the accent, and most luminous energy see through cloche by the absorption of heat exchange coil outer wall after running into cloche, and a small amount of luminous energy launches between the cloche inwall with catoptrical form.Stray light 23 gets into cavity through reflecting type deep bead minute surface reflection back, and the existence of reflecting type deep bead makes the incident ray that script has taken place to depart from can get into cavity, the light capturing ability that improved cavity.And the high transmission rate of spherical glass cover and multipath reflection effect make the light that gets into cavity more be prone to by efficient absorption.Said cloche adopts the high temperature resistant quartz glass of high transmission rate, and light transmittance is greater than 0.95; Cloche smooth surface and thickness are 2mm-4mm.The surface of optically focused dish is parabolic; The focus of optically focused dish is positioned at the central point of cloche opening surface; The line of optically focused dish outer rim and focus and the angle of vertical curve are the half angle of optically focused dish, and the scope of half angle is 30 °-45 °, and the twice of half angle is the subtended angle of optically focused dish.Spacing 1mm-2mm between the adjacent coil pipe outer wall, coil pipe are close to the housing inboard and arrange, and the heat-conducting fluid that flows in the pipe adopts a kind of in resistant to elevated temperatures conduction oil, phase-changing energy storage material, the heat chemistry energy storage material.Heat exchange coil is processed by thermal conductivity high red copper or aluminum or aluminum alloy, and the outside wall surface of heat exchange coil is a rough surface.
In the above-mentioned spherical cavate solar heat absorber that contains the indent cloche, the drift angle of truncated cone-shaped is the twice angle of the bus and the central shaft angle of round platform, is equal to or greater than the subtended angle of optically focused dish; The end face diameter of truncated cone-shaped equals the diameter of the opening surface of spherical glass cover, and the bottom surface of round platform is positioned at outside the housing, and the bottom surface diameter is greater than the opening surface diameter of housing, but less than the maximum gauge of housing.
The truncated cone-shaped deep bead can link to each other housing and cloche are seamless.Such structure can guarantee that focused ray nondestructively gets into cavity; Simultaneously because the cloche light transmittance is high; Overwhelming majority light is absorbed by the tube wall face of heat exchange dish after seeing through cloche, and multipath reflection takes place in cloche a spot of reflection ray, until being absorbed by the wall coil pipe.The sealing area that open type spherical shell, open type spherical glass cover, truncated cone-shaped deep bead three form is heat exchange coil and extraneous air isolation, air can't with the tube wall direct heat transfer of internal high temperature, the convection heat losses is reduced greatly.
As shown in Figure 3, be heat radiation process sketch map in the chamber.The heat exchange coil tube wall of high temperature sends heat radiation ray 21 and after running into cloche, the part heat is passed to the cloche wall, and the part heat is given the heat exchange coil tube wall by the radiation of cloche wall.Heat radiation ray 19 is when running into the deep bead medial surface, because the deep bead medial surface scribbles infrared reflection coating, most of heat is reflected to the heat exchange coil tube wall.The closed area that spherical glass cover, spherical shell and deep bead form can reduce thermal radiation loss effectively, improves the overall efficiency of cavity type heat absorber.The reflecting type deep bead contains two mirrored sides, and the outside is the minute surface towards the optically focused dish, is used for the stray light on optically focused dish surface is reflected into cavity, and the inboard then scribbles infrared reflection coating, is used to reflect inner heat radiation ray, reduces the thermal radiation loss of heat dump.Deep bead has good barrier effect to natural wind simultaneously, can reduce the forced convertion heat loss that extraneous wind-force brings.
Claims (10)
1. the spherical cavate solar heat absorber that contains the indent cloche; It is characterized in that comprising housing, concave cloche, reflecting type deep bead, heat exchange coil and optically focused dish; Described cavity type heat absorber overall structure is the spherical cavity of band opening; The structure of its middle shell is the spherical cavity of band opening, and the concave cloche is also for being with the spherical cavity of opening; The centre of sphere of cloche overlaps with the centre of sphere of housing, and the opening of cloche and housing is towards consistent, and opening surface is circle, and two circles equate with two conical drift angles that the centre of sphere forms, the opening subtended angle equal and opposite in direction of said drift angle size and optically focused dish; Opening surface is over against the optically focused dish; Heat exchange coil is pressed close to the shape arrangement in the shape of a spiral of inner walls face, and the opening of housing is positioned at the housing bottom, and the heat-conducting fluid outlet of heat exchange coil is positioned at the housing top end, and the heat-conducting fluid inlet of heat exchange coil is positioned at the housing bottom end position; The reflecting type deep bead is the truncated cone-shaped plate of upper and lower opening, its top and the cloche openings is seamless joins, and the side of reflecting type deep bead links to each other with shell nozzle is seamless, forms a sealing area that is made up of housing, cloche, deep bead.
2. according to the said spherical cavate solar heat absorber that contains the indent cloche of claim 1, it is characterized in that described housing is double-deck steel design, comprise inner casing, shell and by the vacuum layer that forms between the inside and outside shell; The opening position of housing vertically down, housing is divided into upper half shell and lower half shell two parts, the crossing face level of last lower half shell and the centre of sphere through housing, last lower half shell links to each other through four pairs of bolt and nuts, sealing rubber ring is used in the joint; There are some breeder tubes at the sealing ring middle part, and the vacuum layer of lower house is connected; The bottom of lower casing is provided with the pore that a confession heat exchange coil lower end heat-conducting fluid inlet passes, and the top of upper casing is provided with the pore that a confession heat exchange coil upper end heat-conducting fluid outlet is passed, sealing around the pore; The lower casing bottom is provided with and is used for the aspirating hole that the vacuum connection vacuumizes machine, and aspirating hole is furnished with the rubber stopper that is used to seal.
3. according to the said spherical cavate solar heat absorber that contains the indent cloche of claim 2, it is characterized in that heat exchange coil press close to housing inner casing wall in the shape of a spiral shape arrange.
4. according to the said spherical cavate solar heat absorber that contains the indent cloche of claim 1, it is characterized in that said cloche adopts the high temperature resistant quartz glass of high transmission rate, light transmittance is greater than 0.95; Cloche smooth surface and thickness are 2mm-4mm.
5. according to the said spherical cavate solar heat absorber that contains the indent cloche of claim 1; It is characterized in that; The surface of described optically focused dish is parabolic, and the focus of optically focused dish is positioned at the central point of cloche opening surface, and the line of optically focused dish outer rim and focus and the angle of vertical curve are the half angle of optically focused dish; The scope of half angle is 30 °-45 °, and the twice of half angle is the subtended angle of optically focused dish.
6. according to the said spherical cavate solar heat absorber that contains the indent cloche of claim 1; It is characterized in that; Described heat exchange coil adopts double helix or many helical structures, and said double helix or many helical structures refer to two or the many structures that straight tube carries out spiralization by the pitch of setting side by side.
7. according to the said spherical cavate solar heat absorber that contains the indent cloche of claim 6; It is characterized in that; Spacing 1mm-2mm between the adjacent coil pipe outer wall; Coil pipe is close to the housing inboard and is arranged, and the heat-conducting fluid that flows in the pipe adopts a kind of in resistant to elevated temperatures conduction oil, phase-changing energy storage material, the heat chemistry energy storage material.
8. according to the said spherical cavate solar heat absorber that contains the indent cloche of claim 5, it is characterized in that described heat exchange coil is processed by thermal conductivity high red copper or aluminum or aluminum alloy, the outside wall surface of heat exchange coil is a rough surface.
9. according to the said spherical cavate solar heat absorber that contains the indent cloche of claim 1; It is characterized in that; The truncated cone-shaped thin plate that said reflecting type deep bead is a upper and lower opening; Its side all has reflection function, and the outside of reflecting type deep bead is a minute surface towards a side of optically focused dish promptly, the ability reflection ray; The inboard of reflecting type deep bead promptly dorsad a side of optically focused dish scribble infrared reflection coating, can reflective thermal radiation ray.
10. according to the said spherical cavate solar heat absorber that contains the indent cloche of claim 9, it is characterized in that the drift angle of truncated cone-shaped is the twice angle of the bus and the central shaft angle of round platform, be equal to or greater than the subtended angle of optically focused dish; The end face diameter of truncated cone-shaped equals the diameter of the opening surface of spherical glass cover, and the bottom surface of round platform is positioned at outside the housing, and the bottom surface diameter is greater than the opening surface diameter of housing, but less than the maximum gauge of housing.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2473688A1 (en) * | 1980-01-11 | 1981-07-17 | Fluidotermus | Solar heat collector with monophase heat transfer fluid - has walls defined by tube coiled around imaginary partial sphere and uses parabolic mirror to focus radiation |
| CN2148925Y (en) * | 1992-11-22 | 1993-12-08 | 刘玉玺 | Solar energy heat sink |
| CN2249389Y (en) * | 1996-01-18 | 1997-03-12 | 陈鹤聪 | Omnibearing light-collecting water-ball solar water heater |
| DE10232616A1 (en) * | 2002-07-12 | 2004-02-05 | Klaus Kabella | Solar energy collector has a concave mirror reflecting rays of the sun on to heat transfer tubing wound in the shape of a ball at center of mirror |
| US20070221210A1 (en) * | 2006-03-20 | 2007-09-27 | Steven Polk | Solar power plant |
| CN101216220A (en) * | 2008-01-14 | 2008-07-09 | 东南大学 | Special-shaped modular type hollow space solar energy high-temperature receiver |
| CN101706161A (en) * | 2009-11-25 | 2010-05-12 | 哈尔滨工业大学 | Cavity type solar heat absorber provided with optical window |
| CN102252433A (en) * | 2011-05-09 | 2011-11-23 | 湘潭电机股份有限公司 | Dish type solar energy thermal power generation system and heat collector thereof |
| CN102374671A (en) * | 2011-11-14 | 2012-03-14 | 天津大学 | Hemispherical cavity type solar heat collection device |
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-
2011
- 2011-08-31 CN CN2011102551448A patent/CN102322694B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2473688A1 (en) * | 1980-01-11 | 1981-07-17 | Fluidotermus | Solar heat collector with monophase heat transfer fluid - has walls defined by tube coiled around imaginary partial sphere and uses parabolic mirror to focus radiation |
| CN2148925Y (en) * | 1992-11-22 | 1993-12-08 | 刘玉玺 | Solar energy heat sink |
| CN2249389Y (en) * | 1996-01-18 | 1997-03-12 | 陈鹤聪 | Omnibearing light-collecting water-ball solar water heater |
| DE10232616A1 (en) * | 2002-07-12 | 2004-02-05 | Klaus Kabella | Solar energy collector has a concave mirror reflecting rays of the sun on to heat transfer tubing wound in the shape of a ball at center of mirror |
| US20070221210A1 (en) * | 2006-03-20 | 2007-09-27 | Steven Polk | Solar power plant |
| CN101216220A (en) * | 2008-01-14 | 2008-07-09 | 东南大学 | Special-shaped modular type hollow space solar energy high-temperature receiver |
| CN101706161A (en) * | 2009-11-25 | 2010-05-12 | 哈尔滨工业大学 | Cavity type solar heat absorber provided with optical window |
| CN102252433A (en) * | 2011-05-09 | 2011-11-23 | 湘潭电机股份有限公司 | Dish type solar energy thermal power generation system and heat collector thereof |
| CN202216425U (en) * | 2011-08-31 | 2012-05-09 | 华南理工大学 | Spherical cavity type solar energy thermal absorber provided with inner-concaved glass cover |
| CN102374671A (en) * | 2011-11-14 | 2012-03-14 | 天津大学 | Hemispherical cavity type solar heat collection device |
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| CN108613421A (en) * | 2018-05-14 | 2018-10-02 | 上海理工大学 | It include the displacement air heat dump of modular microfluidic capsule phase change material |
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| CN110210146B (en) * | 2019-06-06 | 2023-04-28 | 中国能源建设集团陕西省电力设计院有限公司 | System and method for determining optimal opening diameter of cavity type heat absorber |
| CN112413910A (en) * | 2020-12-18 | 2021-02-26 | 余利强 | Solar heat collecting device |
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